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Wikipedia 'Template Parameter Obsolescence' by Infobox Type
This page tracks how often Wikipedia’s infobox templates retain parameters that are no longer used in articles. It measures the median number of obsolete parameters per template and the share of templates with at least one unused field. The data comes from analysing template documentation and article transclusions across different infobox types. Tracking this helps editors spot where documentation has fallen behind actual usage, improving consistency and reducing clutter in template structures.